Zenith GM Schematic
GM WIRING DIAGRAM
21 43 65 87 109 1211
G
RED GREEN BLUE
ANODE LEAD
YOKE
F
E
3N2
3G2
5C2
HRB
B
R
K
B
H
R
9X4
TEST PAD S
4L8
DBB
RF/SW
GND
9-1914
9-1942
D
9-1943
GM MAIN
MODULE
+9V SB
DAG GROUND DAG GROUND DAG GROUND
RED
5FR
FOCUS
G2
VIDEO OUT
9-1938
KRB
GND
H.P.F. VID
VMBL
WHITE
BLACK
WHITE
H
R
A
VMGR
9-1932 MICRO (CONTAINS EPROM & EAROM IN SOCKET)
TO H.V. BLOCK
AKB_SENSE
RED OFF
+12VSW
SETUP
GND
RED VIDEO
HRA
TO F/G2 ASS’Y
5B3
1
BLACK
WHITE
BLACK
H
H
R
R
A
A
VMRD
A-17869
IR DETECTOR
9H6
HRC
+5V SB
GND
+5V SB
GND
DBB
IR DATA
IR DATA
MUTE
CLOCK
DBB
8C36H9
CEB
DATA
YOKE
GREEN
VIDEO OUT
9-1936
G
AUDIO GND
AUDIO Vcc
HRA
9K3
GROUND 2
GROUND 1
PWR DWN
+37V SB
+12V SW
PWR CONT
6A3
+15V SB
+15V CONT
DBA
115V
FOCUS
G2
5A2
ANODE LEAD
H
R
A
TO F/G2 ASS’Y
HRA
3H3
HRA
HRA
3H3 3H3
TO H.V. BLOCK
5C2
HRC
1
VERT HI
VERT LO
VERT HI
VERT LO
VERT HI
VERT LO
VERT BLAN K
VERT DRIVE
N/C
ABL SENSE
BLUE VIDEO
GND
SETUP
+12VSW
BLUE OFF
AKB_SENSE
+26VSW
HRA
DBC
AKB_SENSE
RED OFF
+12VSW
SETUP
5FR 5FB
GND
RED VIDEO
5B3
TO YOKES
DBB
3G2
+250V
N/C
3B5
1
DAUGHTER BOARD
CON2
CON1
11
+16V SW
GND
G1 SPOT KILL
G1
FIL
FIL
A-17821-05
CON3
1
YOKE
BLUE
VIDEO OUT
9-1937
3C7
B
R
H
V-PARAB
H-PULSE
V-PULSE
D-FOCUS
GND
+16VDC
-26VSW
+26VSW
N/C
CON5
CON4
11
CON6
1
FUTURE
9K3
(ALT.)
AUDIO Vcc
AUDIO GND
HRB
C
+9VSW
GND
IR
+5V SB
GND
KEY2
KEY1
R
A
H
6K2
RIGHT
WOOFER
KEYBOARD &
IR ASSEMBLY
10 BUTTON
RIGHT
TWEETER
+
-
R HI
R LO
RIGHT HI
RIGHT LO
B
CAP.
+9VSW
6P2
POWER
LED
GND
H
R
A
HRB
2P6A
+5V SBIRGND
HRB
2K6A
G2SETUP
GND
B OFF
G OFF
R OFF
AKB_PULSE
+12VSW
KEY2
KEY1
SW1
+12VSW
B BLA NK
+26VSW
H
R
A
2A5
SW2
TESTPRJ
1
HRA
G BLANK
R BLANK
9M4
L HI
8L4
HRB
RF/SW
GND
9V SB
EHB
L LO
R HI
R LO
A
LEFT
TWEETER
+
LEFT HI
LEFT LO
-
CAP.
L HI
L LO
LEFT
WOOFER
9-1650-02 SINGLE PIP OR
9-1689-02 SINGLE PIP W/TUNER
9-1783A AUDIO/IF W/TUNER/MTS W/BBE OR
9-1783-01A AUDIO/IF W/TUNER/MTS W/O BBE
VIDEO
9-1924
9-1925
AKB_SENSE
G DRIV E
B DRI V E
R DRIVE
+12VSW
GND
G2 SETUP
N/C
VERT DRIVE
N/C
VERT BLANK
ABL SENSE
H
R
A
2G3 2C5 2N3 4X9
AKB_PULSE
H
R
A
N/C
HORZ BLANK
A-18347-01 RF SWITCH *
A
R
JACK PACK
1 TOAT
HRA
9-1920 11 JACK
9-1921 18 JACK
9-1922 21 JACK
SDA1
+5VSB
TE_CTR L
GND
SCL1
FOR TESTINGFOR TESTING
K
4A8
CHROMA IN
GND
LUMA IN
GND
VIDEO IN
GND
LT AUD IN
SENSE
RT AUD IN
GND
V SENSE
DF PARB
50VPSW
DB3
250VDC
740VDC
N/C
N/C
PWR CTRL
+15V SBY
+15VVSWG1HLL GND
ABL SW
DB2
BLANK
HLL GND
HLL GND
HVFB
ABL
HS GND
DB5
DB7
DB6
HS GND
HS GND
DB1
DB4
A GND
A GND
4F
GND
3A6
B
H
R
+15V CONT
+12V SW
PWR CONT
PWR DWN
+15V SB
+37V SB
GROUND 2
GROUND 1
GND
HORZ DRIVE
GND
H.P.F. VID
GND
A
A
R
R
K
K
HV FEEDBACK
G 115V
FRONT JACK PACK
LEFT RIGHT VIDEO YC INPUT
8A4
*
4
3
2
1
A-17307*
3K9
D
B
B
AUDIO Vcc
AUDIO GND
9-1978
GM SMPS/HORIZ
MODULE
ANODE LEAD
TO H.V. BLOCK
TO VIDEO
OUTPUT
MODULES
RED
GREEN
V-PULSE
D-FOCUS
GND
+16VDC
G2
FOCUSRED
G2
FOCUSGREEN
G2BLUE
FOCUSBLUE
N/C
-26VSW
+26VSW
H
R
A-17196
H.V. BLOCK
DYNAMIC FOCUS
BLACK LEAD
TO OPTICS GND
A
+26VSW
AKB_SENSE
BLUE OFF
+12VSW
5FB
SETUP
GND
BLUE VIDEO
DBA
FOCUS
TO F/G2 ASS’Y
G2
3N2
KRB
DYNAMIC FOCUS
A GND
5B3
1
GND
HORZ DRIVE
GND
HORZ FLYBK
HORZ BLANK
3D3
HORIZ HI (RED)
HORIZ LO (BLU E )
HORIZ HI (RED)
HORIZ LO (BLU E )
TO YOKES
HORIZ HI (RED)
HORIZ LO (BLU E )
TO OPTICS
BED GND
3D3
3D3
SWEEP
H
R
TO
CRT’S
3C8
B
CEB
RED ANODE
GREEN ANODE
BLUE ANODE
31.5 KV
H.V. ANODE
CLOCK
MUTE
DATA
V-PARAB
H-PULSE
7C3
TO OPTICS
GND
-05
BLACK LEAD
BLACK LEAD
GRAY
H.V. REF
BLACK
GND
FOCUSG2
BLACK LEAD
BLACK LEAD
7C9RED
31.5KV
SPARK GA P
1
3R8
AC LINE HI
AC LINE LO
9-1690
DIGI TAL CONV.
MODULE
HRAHRAHRA
7C9GREEN
7C9BLUE
HORIZ LO
VERT LO
VERT HI
HORIZ HI
HORIZ LO
VERT LO
VERT HI
HORIZ HI
HORIZ LO
VERT LO
VERT HI
HORIZ HI
TO RED TRAILER YOKE
TO GREEN TRAILER YOKE
TO BLUE TRAILER YOKE
NOTE
= SOME MODELS
*
= 120V OR >
CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X“ IN THEIR
COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED.
ALL SYMBOLS WI TH “M” ON END OF DESI GNATOR
INDICA TE SURFACE MOUNTED COMPONENT.
6 - 1
28-3958
GM INTERCONNECT DIAGRAM
21 43 65 87 109 1211
G
F
E
D
A-18347 RF SW.
C
B
NOTE * = SOME MODELS
TO 3 POINT
SPARK GAP
ON POWER
SUPPLY
ANTENNA
CABLE 1
LOOP OUT
TO DECODER
ANTENNA
CABLE 2
RIGHT
SPKR
LEFT
SPKR
IR
+5VSB
KEY1
6K2
KEYBOARD &
IR ASSEMBLY
10 BUTTON
HRA
8L4
R LO
R HI
L LO
L HI
KEY2
+9VSB
GND
RF/SW
ANODE LEAD
AKB_SENSE
G DRIVE
B DRIV E
R DRIVE
+12VSW
GND
G2 SETUP
N/C
DBA
3A6
+15V CONT
+15VSB
PWR CONT
+12VSW
+37VSB
PWR DWN
GROUND 1
GROUND 2
N/C
N/C
3P4
5C2
5X3
PWR CONT
+23VDC
H
R
D
B
A
ED
R
G2 SETUP
3G2
D
B
B
JUMPER
CRT HTR
CRT HTR
GND
+260VDC
DAG GND
DAG GND
D
B
G2
A
HOR PULS
N/C
GND
5A3
3P1
A
HRB
9-1939
SCAN VELOCITY MODULATION
9X4
B
R
K
GND
H.P.F. VID
VMRD
A
H
R
VMGRA
+12VSW
+130VSW
3N2
B
R
K
N/C
VERT DRIVE
N/C
ABL SENSE
VERT HI
HRB
+5VSBIRGND
KEY1
VERT LO
HORIZ HI
HORIZ LO
9-1935
VIDEO OUTPUT
AUDIO GND
9K3
AUDIO Vcc
HRA
GROUND 2
GROUND 1
PWR DWN
KEY2
6A3
+37VSB
+12VSW
PWR CONT
+15VSB
15VDC CONT
HRA
N/C
GND
16V SW
+130VSW
H
R
A
4W9
YOKE
GND
H
R
A
N/C
GM MAIN
MODULE
4L8
D
B
+9VSW
GND
DBB
B
RF/SW
GND
+9VSB
2P6
9-1913
9-1932 MICRO (CONTAINS EPROM & EAROM)
DAG GROUNDS
2K6
FUTURE
9-1689-02 SINGLE PIP W/TUNER
9K3
(ALT.)
HRA
AUDIO Vcc
AUDIO GND
H
R
A
GND
N/C
NECK COIL
VMBL
DBB
A
H
R
9W4
9-1783A W/BBE AUDIO/IF/TUNER/MTS
VERT PULSE
GND
GND
HORZ FLYBK
B
E
H
9M4
FRONT JACK PACK
LEFT RIGHT VIDEO YC INPUT
A-17307
9-1927
N/C
AKB_SENSE
G2 SETUP
GND
+12VSW
R DRI VE
B DRIV E
G DR IV E
VERT DRIVE
N/C
N/C
ABL SENSE
H
R
A
N/C
H
R
A
VIDEO
2G3 2C5 2N3 4X9
9-1922 21 JACK PACK
1 TOAT
HRA
SCL1
GND
SDA1
+5VSB
TE_CTRL
FOR TEST ING
CHROMA IN
GND
LUMA IN
GND
VIDEO IN
34
2
*
8A4
1
A
R
K
GND
LT AU D IN
FRONT JACK SENSE
RT AUD IN
GND
GND
HORZ DRIVE
GND
HORZ FLYBK
VERT PULSE
A
R
K
KRB
4A8
HORZ DRIVE
3K9
AUDIO Vcc
AUDIO GND
DBA
H.P.F. VID
GND
A
R
K
TO RF SWITCH
9-1979 36V
GM SMPS/HORIZ. MODULE
SPARK GAP
HRB
DEGAUSSER
DEGAUSSER
DEGAUSSER
DEGAUSSER
B
3T8
3R8
1
AC LINE HI
AC LINE LO
+260VDC
GROUND
CRT HTR
CRT HTR
3X5
3A5
VERT HI
VERT LO
HORIZ HI
HORIZ LO
H.V. ANODE LEAD
3Y3
A
CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X“ IN THEIR
COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED.
ALL SYMBOLS WITH “M” ON END OF DESIGNATOR
INDICATE SURFACE MOUNTED COMPONENT.
6 - 2
28-3957
GM SERIES SINGLE PIP (1650-02)
121110987654321
H
G
F
E
D
C
B
AFC1
37VSB
9VSB
AFC2
APWR_MUTE
AEXT_MUTE
T2CVIN
GND_T2
COMP_AUD2
T2_CV_MICRO
FB_OSD
R_OSD
G_OSD
B_OSD
PIP_TINT
HTONE
FSTBLK
HFLBK_PM
VDRIVE
B_OSD+PIP
G_OSD+PIP
R_OSD+PIP
GND_OSD+PIP
5V_SB
T1CV_MICRO
Y_MICRO
BBE1
ENABLE
SCL2
SDA2
SCL1
SDA1
RESET
PWR_FAIL
PIP_CV
GND_PIP_CV
NC
NC
NC
NC
NC
NC
NC
NC
NC
15V_SW
15V_SW
9V_SW
IRBLST2
IRBLST1
SPARE_PWM
SPARE
VOL_LIMIT
12_VSW
5V_SW
1
SCL1
2
3
4
SDA1
5
6
7
8
9
10
11
12
FB_OSD
R_OSD
G_OSD
B_OSD
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
HFLBK_PM
28
29
30
31
32
33
34
35
36
D
37
A
38
39
40
41
42
43
44
L2011
3.3UH
C2066M
1000PF
45
46
47
48
L2007
10UH
49
50
51
1000PF
C2059M
C2060M
52
53
C2053M
FSTBLK
B_OSD+PIP
G_OSD+PIP
R_OSD+PIP
R2067M
C2075M
10PF
PIP_CV
1K
R2050M
CR2004
103-142-01
1000PF
22PF
C2074M
C2067M
1K
L2005
3.3UH
22PF
C2069M
C2040M
0.1
B
1000PF
+8V
SW
C2063M
C2054M
C2056M
22PF
+8V
SW
R2051
103-142-01
C
E
Q2008
121-12 32A
L2008
10UH
1000PF
10PF
C2055M
22PF
C2070M
20K
R2001M
R2002M
12K
121-13 11A
R2052
4.3K
16K
CR2003
C2051
22PF
B
Q2000
C2061M
22PF
C2057M
C2071M
L2009
3.3UH
33MF
L2006
3.3UH
22PF
+8V
SW
E
C
R2003M
1000PF
10MF
16V
22PF
+5V
SW
C2052M
1K
C2062M
R2053M
1K
C2050
C2073M
C2058M
C2072M
22PF
0.01
+5V
SW
R2006M
10PF
C2043M
C2044M
.1
C2045M
22PF
PIP-RED
PIP-GRN
PIP-BL U
PIP-BL
R2000M
+8V
33PF
SW
C2003
.1
.1
R2066
C2036
.1
100
C2001M
.01
.01
R2061
R2064
100
C2035
C2037
C2002
10MF
100
100
.1
.1
+8V
R2060
100
R2062
R2063
100
R2065
100
C2000M
AGND
C2005
SW
100
N.C.
.1
.1
IC2000
221-888
PIP_ANALOG
1
RIN2
2
GIN2
3
BIN2
4
PAL/NTSC
5
FBOUT
SECAMREF
6
BOUT
7
GOUT
8
ROUT
9
CVBS/YC
10
RIN1
11
GIN1
12
BIN1
13
FBIN1
SANDCASTLE
14
CLAMP
15
FILTER
16
CHROMA
17
CVBS
18
GND
19
VDD
20
CVBSINT
21
DECOUP
22
CVBSOUT
23
XTAL2
24
XTAL1
25
COLOR2
26
FBIN2
R-YOUT
B-YOUT
YOUT
SECCHR
PLLFIL
XTAL4
XTAL3
XTAL2
XTAL1
VDD
HOUT
GND
FILTER
VOUT
BANDCAP
IFIN2
IFIN1
INT/EXT
TDP
CAGC
AGC
HUE
A/WCOLOR1
52
C2015
.1
C2017
.1
R2017
C2012M
.1
R2019M
100
R2018M
100
51
50
49
48
N.C.
47
N.C.
R2057M
1K
1K
R2058M
46
CR2001
45
44
3.58MHZ
224-27A
43
R2068M
2.7K
42
+8V
C2010M
16PF
SW
C2013
.1
1K
R2059M
R2015M
100K
.0047
C2011M
41
40
39
38
37
36
C2008M
C2031M
R2014M
12K
.0047
0.01
1MF
C2009
35
34
1MF
33
C2007M
.022
C2033
+5V
SWA
32
31
30
29
28
27
ALL SYMBOLS WITH M
ON END OF DESIGNAT OR
INDICATE MELF
SURFACE MOUNTED COMPONENT.
Compos i t e Vi deo
.01
C2014M
A
E
C
R2004M
10K
R2016
IC2001
PIP_DIGITAL
100
18
19
20
21
22
23
24
25
26
27
D
28
29
30
31
32
1MF
C2018
A
Q2001
121-1311A
1K
221-889
VP GND
HP/SCP
VPD/VI
HPD/SCI
SDA
SEL
SW1
SW2
HVI
SYS
VSS
YIN
VDDA1
UIN
VREFH
VIN
R2005M
B
12K
C2020
ADR
VBB
SELD
SEL
IREF
VDDA2
BOUT
GOUT
ROUT
VSSA2
VDD
XIN
VREFL
VSSA1
1MF
20K
C2041M
0.1
1617
15
14
13
12
11
10
9
8
7
6
5
XQ
4
3
2
1
C2029M
R2020M
5.1K
224-167
A
D
.01
D
PIP-BL
C2023M
L2003
33MF
A
10UH
16V
D
+5V
SW
C2028
470
1/10W 5%
R2035M
.01
33MF
L2002
10UH
C2024
16V
33MF
R2038M
R2036M
1/10W 5%
+5V
SW
C2025
D
470
470
.01
470
R2037M
1/10W 5%
PIP-GRN
PIP-RED
PIP-BLU
+5V
SWA
A
.01
C2027
C2026M
A
C2022M
15PF
C2021M
CR2002
20.25M H Z
15PF
D
54
55
A
CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X“ IN THEIR
COMPONENT DESI GNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED.
ALL SYMB OLS WI TH “M” ON END OF DESIGNATOR
INDICA TE SURFACE MO UNTED COMPONENT.
6 - 3
204-3119
GM SERIES PIP 9-1650-02 SHEET 4
GM Series SINGLE PIP (9-1689-02)
G
COMP_AUD2
T2_CV_MICRO
F
E
GND_OSD+PIP
D
C
B
SPARE_PWM
A
TO MAIN CARRIER
AFC1
37VSB
9VSB
AFC2
APWR_MUTE
AEXT_MUTE
T2CVIN
GND_T2
FB_OSD
R_OSD
G_OSD
D_OSD
PIP_TINT
HTONE
FSTBLK
HFLBK_PM
VDRIVE
B_OSD+PIP
G_OSD+PIP
R_OSD+PIP
5V_SB
T1CV_MICRO
Y_MICRO
BBE1
ENABLE
SCL2
SDA2
SCL1
SDA1
RESET
PWR_FAIL
PIP_CV
GND_PIP_CV
15V_SW
15V_SW
9V_SW
IRBLST2
IRBLST1
SPARE
VOL_LI MIT
12_VSW
5V_SW
L2003
16V
2.2UH
PIP-RED
1211109
PIP-BL
R2036M
PIP-GRN
+5V
C2028
470
SW
SHT.5
G-1
SHT.5
G-1
SHT.5
G-1
SHT.5
G-1
SHT.5
F-1
SHT.5
F-1
R2037M
D
16V
47MF
PIP-BLU
470
87654321
P1
+37V
SB
1
2
3
P2
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
C2072M
P3
1
2
3
P4
PIP_CV
1
2
NC
NC
NC
NC
NC
NC
NC
NC
NC
3
D
P5
P6
1
2
3
4
5
+12V
6
7
8
SW
R2022M
220
C2054M
27PF
50V
R2009M
330
C2069M
50V
22PF
HFLBK_ PM
R2067M
1K
50V
10PF
C2075M
R2010M
750
50V
22PF
C2066M
0.01
25V
+9V
C2059M
C2061M
SW
C2062M
L2011
3.3UH
L2007
10UH
50V
1000PF
L2008
2.2UH
50V
1000PF
C2063M
C2074M
FSTBLK
50V
10PF
Q2000
121-1310A
10K
R2002M
C2065M
Q2002
121-1310A
PROV
C2064M
C2060
C2051
R2023M
220
50V
22PF
C2056M
22PF
C2070M
B
220PF
B
R2011M
220
R2012M
220
0.01
25V
D2001
103-295A
16V
100MF
16V
47MF
C2073M
50V
+5V
50V
+8V
SW
R2053M
100
+5V
C2052M
C2071M
SW
R2003M
SW
27PF
22PF
C
E
C2002
+8V
SW
50V
50V
C
E
1MF
50V
FB_OSD
R_OSD
G_OSD
B_OSD
22PF
C2057M
B_OSD+PIP
G_OSD+PIP
R_OSD+PIP
50V
22PF
1K
L2000
R2024M
50V
0.01
50V
22UH
470
C2058M
C2039M
12PF
L2001
R2025M
C2044
50V
22PF
PIP-RED
PIP-GRN
C2042M
12PF
L2004
22UH
R2026M
470
50V
.1
22UH
R2063M
100
C2046M
12PF
470
C2043
50V
C2045
.1
50V
+8V
.1
SW
R2061M
+5V
R2064M
10
R2066M
10
C2036M
PIP-BL
C2003
.01
50V
C2030M
SW
100
25V
.1
R2062M
R2001M
R2000M
PROV
R2060M
100
100
PROV
R2065M
10
C2035M
C2037M
100
C2001M
.1
25V
.1
25V
.01
25V
C2005
50V
.1
C2000M
.1
25V
C2047M
.01
50V
A
IC2000
221-888
PIP_ANALOG
1
RIN2
2
GIN2
3
BIN2
4
PAL/NTSC
5
FBOUT
SECAMREF
6
BOUT
7
GOUT
8
ROUT
9
CVBS/YC
10
RIN1
11
GIN1
12
BIN1
13
FBIN1
SANDCASTLE
14
CLAMP
15
FILTER
16
CHROMA
17
CVBS
18
GND
19
VDD
20
CVBSINT
21
DECOUP
22
CVBSOUT
23
XTAL2
24
XTAL1
25
COLOR2
26
FBIN2
R-YOUT
B-YOUT
YOUT
SECCHR
PLLFIL
XTAL4
XTAL3
XTAL2
XTAL1
VDD
HOUT
GND
FILTER
VOUT
BANDCAP
IFIN2
IFIN1
INT/EXT
TDP
CAGC
AGC
HUE
A/WCOLOR1
R2017M
100
C2068M
470PF
50V
R2016M
10K
C2067M
220PF
50V
R2027M
R2028M
1.2K
Q2003
121-1310A
L2005
18UH
C2012M
.1
25V
+8V
SW
0.01
C2031M
1.5K
25V
C2017
.1
50V
C2015
C2013
.1
50V
C2016M
270PF
50V
50V
.1
R2057M
100
R2058M
52
51
50
R2059M
49
48
N.C.
47
N.C.
46
45
44
J1M
43
42
100
CR2001
224-27A
3.58MHZ
P/L
CR2003
3.57MHZ
P/L
B
C2011M
.0047
C2010M
18PF
50V
41
+5V
50V
SW
C
E
R2029M
C2078M
R2068M
C2076M
0.1
25V
R2030M
120
220
P/L
P/L
100
R2015M
100K
40
39
38
37
36
50V
12K
.0047
R2014M
C2008M
35
C2006M
.01
25V
C2004M
.01
25V
34
33
32
50V
C2009
1MF
C2007M
.022
25V
C2033
1MF
50V
31
30
+5V
29
28
27
SW
+5V
SWA
PROV
R2013M
PROV
R2021
D
PROV
D2200
PROV
C2048
D
C2014M
.01
25V
D
R2008M
1K
D
D
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
+5V
SW
E
C
R2004M
1K
D
IC2001
D
VP GND
HP/SCP
VPD/VI
HPD/SCI
SDA
SEL
SW1
SW2
HVI
SYS
VSS
YIN
VDDA1
UIN
VREFH
VIN
C2020
1MF
50V
R2006M
20K
R2005M
B
12K
Q2001
121-1311A
221-889
PIP_DIGITAL
ADR
VBB
SELD
SEL
IREF
VDDA2
BOUT
GOUT
ROUT
VSSA2
VDD
XQ
XIN
VREFL
VSSA1
R2007M
1617
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
820
D
C2041
10MF
50V
C2029M
.01
25V
D
C2018
D
C2022M
15PF
CR2002
224-167
20.48MHZ
D
T2_CV_MICRO
9-1650-01/02
9-1689-01/02
9-1764
Composite Video
D
C2021M
15PF
50V
50V
1MF
R2020M
6.8K
R2035M
470
50V
D
.01
C2023M
470
R2038M
D
.01
C2026M
L2002
2.2UH
47MF
25V
C2024
AFC2
T2CVIN
COMP_AUD2
SCL2
SDA2
+5V
SWA
25V
47MF
C2027
D
+5V
SW
50V.01
16V
C2025
D
D
CRITICAL SAFETY COMP ONENTS ARE IDENTIFIED BY THE LETTER “X“ IN THEIR
COMPONENT DESIGNATORS. REPLACE ONLY WIT H PART NUMBERS SP ECI FIE D.
ALL SY MB OL S WITH “M” ON END OF DESIG NATOR
INDIC ATE SURFACE MOUNTED COMPONEN T.
6 - 5
204-3148-04
GM SERIES SINGLE PIP 9-1689- 02 SHEET 4
GM SERIES TWO-TUNER SINGLE PIP (9-1689)
87654321
G
SHT.4
G-12
SHT.4
G-12
SHT.4
G-12
SHT.4
G-12
SHT.4
F-12
SHT.4
F-12
F
AFC2
T2CVIN
COMP_AUD2
T2_CV_MICRO
SCL2
SDA2
R1298M
100
C1298M
10PF
50V
R1297M
100
C1297M
10PF
50V
9-1689-01/02 ONLY
1211109
PROVISIONAL ON 9-1650-01 & 9-1764
Com p os i t e Vi de o
+9V
SW
R1237M
270
R1206MR1205M
1.8K5.6K
C1204M
0.1
25V
220
R1239M
C
E
R1207
AGC
DELAY
R1209M
560
1K
R1235M
B
10K
47K
R1236M
C1210M
27K
TP1203
.001
50V
+12
VSW
R1204M
4.7K
C1230
1MF
50V
C1224M
.068
25V
C1203M
.01
25V
C1209
10MF
50V
R1210M
8.2K
R1201M
1.0K
R1202M
10K
C1202M
.01
25V
1
2
U1201
224-160
L1205
AFC
L1201
18UH
3
IC1201
221-792
R1203M
560
U1202
224-202A
4
C1206M
.001
5
50V
C1208M
.001
50V
C1212M
30PF
10
11
1
2
3
4
5
6
7
8
9
DET_OUT
1ST_SIF_AGC
FM_DET
IF_AGC2
VIDEO_OUT2
RF_AGC_ADJ
EQ_FILTE R
IF_IN1
IF_IN2
APC_FILTER
GND
VIDEO_OUT1
SIF_IN1
VCC
RF_AGC_OUT
AFT1
AFT2
AFT_OUT
SIF_IN2
SIF_OU T
EQ_IN
VCO2
VCO1
IF_AGC1
14
1312
24
23
22
21
20
19
18
17
16
15
L1208
PROV
TP1202
R1213M
0.47MF
PROV
C1219
50V
C1217M
27PF
C1221M
.01
25V
C1220M
R1221M
PROV
R1220M R1219M
47
50V
TP1201
C1215M
.068
25V
PROV
R1225M
PROV
100
C1218M
L1206
VCO
C1216M
.001
25V.01
50V
U1204
224-54A
PROV
L1207
12UH
R1214M
13K
C1223M
2.7k
U1203
224-23A
R1218M
220
+12
VSW
R1215M
33K
R1216M
10K
R1224M
820
Q1201
121-1311A
R1226M
R1222M
R1217M
2.2K
+12
0.1
VSW
R1240M
R1288M
2.2K
0.1
2.2K
R1289M
E
Q1202
121-1311A
C
R1238M
E
B
C
2.2K
B
4.7K
121-1310A
C1205M
.01
25V
C1207M
30PF
50V
L1202
.27UH
C1237
100MF
16V
Q1203
R1233M
E
TP1205
WT1210
+37V
C1299
4.7MF
50V
TP1206
+5V
SW
+12
VSW
C1294M
.01
25V
C1296
100MF
C1293
100MF
16V
SB
C1292M
4700PF
50V
16V
C1201
1MF
50V
+9V
SW
100UH
L1296
C1295M
.01
25V
175-2703
TUNER
1
AGC
2
TU
3
TP1207
4
5
6
7
8
9
10
11
C1291
10MF
50V
D
C
B
A
CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X“ IN THEIR
COMPONENT DESIGNATORS. REPLACE ONLY WITH P A RT NUMBERS SPECIFIED.
R1211M
ALL SY MB OL S WI TH “M” ON E ND OF DESIGNATOR
INDICA TE SURFACE MOUNTED COMPONENT.
18K
C1211M
.01
25V
6 - 6
204-3148-04
GM SERI ES TWO-TUNER SINGLE PIP 9-1689 SHEET 5
GM SERIES IF/AUDIO (9-1783A)
G
C1493
F
100MF
R1489M
C1489M
1000PF
E
R1478M
4.7K
C1473M
1000PF
D
C
9-1783
9-1783-01
R1495M
16V
Q1489
121-1310A
4.7K
C1485
100MF
16V
Q1479
121-1310A
33K
R1492M
C1474
100MF
16V
4.7K
B
R1494M
220K
121-1311A
C
E
R1485M
220
R1484M
1K
R1481M
4.7K
B
R1476M
220
R1490M
1K
Q1491
B
R1486M
1K
C
E
R1479M
R1475M
1K
+5VSB
SDA1
SCL1
R1660
C1661M
0.1
25V
1211109
SHT.5
G-1
+15
VSB
39
SHT.5
D-1
SHT.5
C-1
SHT.5
C-1
SHT.5
C-1
87654321
C1401M
R1409M
1MEG
C1415
1MF
50V
C1424
2700PF
0.015
16V
R1405M
SPECIAL_REQ
LOW_LEAKAGE
C1422
0.047
C1428
4.7MF
50V
C1403M
0.015
16V
C1451
C1432
4.7K
50V
3.9K
C1417
10MF
35V
C1426
10MF
35V
C1427
10MF
35V
10MF
50V
R1408M
3.3K
C1410
4.7MF
50V
C1406M
0.022
16V
C1431M
0.01
25V
C1414
10MF
50V
10%
C1419
3.3MF
R1407M
R1477M
C1452
10MF
C1408
4.7MF
10%50V
3.3K
33K
50V
50V
R1411M
IC1402
C1655
10MF
50V
C1649M
1000PF
LL LL
220
220
R1412M
220
C1656M
R1414M
220PF
NPO
R1675M
39K
C1653
4.7MF
50V
C1658
2.2MF
50V
C1454
10MF
1MF
50V
0.47
C1652
4700PF
C1651M
0.022
R1655M
5.6K
R1663M
50V
56K
C1654
2.2MF
50V
C1660
C1650 C1664
221-1029
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16 17
XR-1071CP
GNDREF
VEE
C1
C2
DET_OUT
LIN
DEFC_OUT
ALL_PASS
LOW_PASS
HIGH_PASS
HIGH_PASS
VCA_OUT
L/P_GAIN1
L/P_GAIN1
L/P_GAIN2
L/P_GAIN2
SUM_MODE
SUM_NODE
LOUT
BBE
R1652M
BBEGND
VCC
C1
C2
DET_OUT
RIN
DEFC_OUT
ALL_PASS
LOW_PASS
VCA_OUT
ROUT
DEF
R1673M
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
5.6K
C1672
4.7MF
50V
C1453
10MF
50V
C1665
4700PF
C1674
1MF
50V
C1673M
1000PF
C1671
2.2MF
50V
C1670
1MF
50V
0.47
C1663M
0.022
R1656M
R1664M
56K
C1675
1MF
50V
5.6K
R1422M
C1657M
220PF
NPO
R1657M
10K
R1659M
5.6K
220
100K
1
BASSL2
C1402M
6800PF
+15
VSB
D1400
103-461A
C
Q1490
B
121-1310A
E
R1499
100
R1498
R1470
2.2K
C1404M
6800PF
50V
50V
100
R1488M
220
E
C
C1486
4.7MF
50V
R1482
1K
E
Q1480
B
121-1311A
C
1K
C1487
4.7MF
50V
R1469
1K
220
R1487M
R1401
100
C1409M
C1420
.012
C1433M
PROV
R1421M
0.01
220
R1234M
+9V
SB
R1402
100
C1477M
10PF
50V
R1425M C1421
1MEG 5600PF
R1406M
100K
C1497
10MF
35V
PROV
C1437M C1429
0.1
25V
100MF
C1416
10MF
35V
R1404M
61.9K
1%
16V
C1478M
10PF
C1418
1MF
50V
C1413
10MF
C1425
4.7MF
50V
50V
50V
2
TRER
3
TREL
4
SURRIN
5
SURROUT
6
LSOUT-R
7
LSOUT-L
8
NC
9
SDA
10
SCL
11
DGND
12
SAD
13
MAININ
14
MAINOUT
15
NC
16
PCINT1
17
PCINT2
18
PLINT
19
COMPIN
20
VGA
21
IREF
22
GND
23
SAPTC
VCC
IC1400
221-1127
BASSL1
BASSR2
BASSR1
SURRTC
TVOUT-L
TVOUT-R
AUX2-L
AUX2-R
AUX1-L
AUX1-R
VLTC
VLDC
VCAWGT
VCATC
VCAIN
VEOUT
VETC
VEWGT
SAPIN
SAPOUT
NOISETC
STIN
SUBOUT
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
VE
29
28
27
26
2524
C1669
100MF
16V
COMP_AUDIO
+15
VSB
+15VSB
Q1677
R1674
121-1310A
10K
R1676M
120K
B
2
3
R1678M
4.7K
+15
R1677M
330K
1
VSB
3
A5
A
VOL_LIMIT
C
B
E
1
2
A4
+15VSB
CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X“ IN THEIR
COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED.
T1CV_MICRO
T1CVIN
+9V
SB
+9VSB
+37VSB
AFC1
1
2
3
4
131211109
A3
SCL2
SDA2
SCL1
SDA1
ALL SYMBOLS W I TH “M” ON END OF DESIGNATOR
INDICA TE SURFACE MO UN TED COMPONENT.
LT_SW
RT_SW
GND_AUD_SW
8
5
6
7
4
1
2
3
A2
LT_SW_VL
RT_SW_VL
VAR_L_EXT
VAR_R_EXT
T1_GND
T1_MTS_RT
T1_MTS_LT
+5VSB
T1CVIN
T1CV_MICRO
6 - 8
CONN ECTORS A1 T HRU A4, TO MAIN CARRIER
3886
A
204-3192-02
8
SUR_VAR_L
GM SERIES IF/AU DIO 9-1783 SHEET 4
5
6
7
GND_VAR_AUD
4
SUR_VAR_R
VAR_L/C_INT
VAR_R/C_INT
1
2
3
A1
AFC1
+9VSB
+37VSB
SHT.5
B-1
SHT.5
B-1
SHT.5
B-1
SHT.5
B-1
SHT.5
B-1
GM SERIES IF/STEREO (9-1783A)
87654321
1211109
G
F
E
D
SHT.4
C
B
SHT.4
G-12
WT1210
175-2703
C1292M
4700PF
SHT.4
D-12
C-12
SHT.4
C-12
SHT.4
B-12
SHT.4
B-12
SHT.4
B-12
SHT.4
A-12
COMP_AU DIO
1
AGC
TU
C1294M
TP1207
C1291
10MF
TP1206
.01
50V
2
3
4
5
6
7
8
9
10
11
+5VSB
C1293
100MF
16V
SDA1
SCL1
+15
VSB
15VSB
T1CV_MICRO
T1CVIN
+9VSB
+37VSB
AFC1
C1287M
PROV
TP1205
C1299
4.7MF
50V
C1295M
.01
C1296
100MF
16V
R1298
100
C1298M
10PF
R1297
100
IC1202
221-167-05
C1200 C1201
1MF
50V
123
+9V
SB
OUTIN
1MF
50V
R1233M
C1297M
L1296
100UH
2.2K
10PF
+12
VSB
+9V
SB
C
E
R1239M
220
121-1310A
B
AGC_DELAY
Q1203
R1212M R1201M
8.2K 100
C1205M
.01
C1204M
0.1
TP1203
R1207
10K
R1204M
4.7K
C1207M
20PF
L1202
.39UH
R1205M
5.6K
R1206M
1.8K
+12
VSB
C1210M
R1211M
C1224M
470PF
C1203M
.01
R1209M
1K
.001
18K
1
2
3
4
C1209
10MF
50V
R1210
8.2K
C1202M
R1202M
10K
.01
U1201
224-148
C1211M
.01
L1201
18UH
AFC
L1205
R1203M
560
8
7
6
5
U1202
224-202A
C1206M
C1208M
.001
C1212M
30PF
.001
1
2
3
4
5
6
7
8
9
10
11
IC1201
1ST_SIF_AGC
FM_DET
IF_AGC2
VIDEO_OUT2
RF_AGC_ADJ
EQ_FILTER
IF_IN1
IF_IN2
APC_FILTER
GND
VIDEO_OUT1
SIF_IN1
VCC
RF_AGC_OUT
AFT1
AFT2
SIF_IN2
SIF_OUT
AFT_OUT
IF_AGC1
DET_OUT
221-792
EQ_IN
VCO2
VCO1
14
1312
24
23
22
21
20
19
18
17
16
15
R1225M
PROV
C1221M
.01
L1208
C1220M
PROV
TP1202
R1220M R1219M
47 100
C1217M
27PF
R1213M
PROV
PROV
C1216M
U1204
224-54A
R1224M
R1221M
C1219
0.47MF
50V
.001
TP1201
C1215M
.068
820
PROV
VCO
L1206
C1218M
.01
R1227M
R1214M
13K
2.7K
C1223M
10PF
R1223
PROV
L1207
12UH
R1215M
R1216
33K
10K
121-1311A
R1226M
2.2K
R1222M
4.7K
U1203
224-23A
+12
VSB
Q1201
C1239
100MF
16V
+12
VSB
R1288
2.2K
B
Q1202
121-1311A
R1218M
220
R1217M
2.2K
E
C
B
R1240
JUMP
+12
VSB
R1238
JUMP
R1289
2.2K
E
C
C1670
C1665
C1672
C1671
204-3192-02
C1664
IC1402
W7
1
R1470
B
W10
C1416
R1499
E
C
AGC
L120 2
D1400
C1425
R1498
C1239
Q1202
R1210
W2
W1
C1418
C1420
C1421
W16
R1402
R1401
C1485
R1289
R1288
CBE
L1201
U1202
AUD
L1205
C1413
C1493
Q1479
Q1489
Q1201
W25
AFC
W20
C1428
C1429
C
C1675
R1674
B
Q1203
E
C
B
Q1677
E
C1654
C1652
C1660
C1454
W19
C1419
C1414
C1432
C1497
C1424
W18
C1427C1426C1417
C1415
C1451
C1422
STEREO PROCE SSOR
IC1400
C1452
1
C1658
C1650
C1674
C1669
R1660
W12
W6
C1653
W24
R1297
W21
C1410C1408
C1453
IN
C1655
C1296
C1200
L1296
R1298
W3
G
+12V
C1291
W11
REG
OUT
IC1202
C1201
W5
C1293
R1207
U1201
WT1210
C1299
C
E
C
B
CBE
E
W8
W4
C1209
W23
B
B
C1474
W15
C1486
IC1201
VCO
W17
A5
C
Q1490
B
E
E
Q1480
C
W14
A4
C1487
A3
Q1491
A2
R1469
R1482
W9
R1240
R1238
R1223
VIDEO
U1204
L1208
U1203
L120 7
A1
L1206
C1219
R1216
9-1783
9-1783-01
A
CRITICAL SAFETY COMPONENTS ARE IDENT IFIED BY THE LETTER “X“ IN T HEIR
COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED.
ALL S Y MBOLS WITH “M” ON END OF DESI G NATOR
INDICA TE SURFACE MOUNTED COMPONENT.
6 - 9
3886 B
204-3192-02
GM SERIES IF/STEREO 9-1783 SHEET 5
GM SMALL SIGNAL CHASSIS ( 9-1912/1913/1914)
87654321 1211109
+37V
SB
R4111
680
1/2W
C4112 D410 2
4.7MF
50V
PROV
PROV
PROV
PROV
9-1931
-9-1650-01
9-1931
1
2
3
+5V
SBF
1
P/L
2
3
+5V
SB
1
2
3
4
5
1
2
3
4
1
2
3
4
+9V
SB
1
2
3
33V
103-301-29A
AUD-IFDOLBYVI DE O
9-1783A
9-1783-01A
9-1783A
9-1783A
MICROGEMSTARPI P
9-1932
9-1932
9-19329-1932
SDA2
SCL2
GND
+5VSBF
GND
IR-IN
+5VSB
IR-IN
KEY1
KEY2
GND
SDA2
SCL2
GND
+5VSW
CLOCK
MUTE
DATA
CONV-ENABLE
+9VSB
GND
RF/SW
2L3
PROV
TO
(LSB)
50-1720-11
6H9
PROJ0-ONLY
DETECTOR
58-526-08
2D7
CONVERGENCE
8C3
50-1721-18
4L8
SWITCH
RF-CNTL
TO
IR
2K6
P/L
KEYBD
PROV.
TO
P/L
TO
RF
TO
P1P2P3P4P5P6
+37VSBA
T2-CVIN
COMP-AUD2
T2-CV-MICRO
PIP-TINT
HFLBK_PM
B-OSD+PIP
G-OSD+PIP
R-OSD+PIP
GND-OS D+PIP
GND-PIP-CV
PIP
P/L
+9VSB
AFC2
GND-T2
FB-OSD
R-OSD
G-OSD
B-OSD
FSTBLK
VDRIVE
+5VSB
ENABLE
SCL2
SDA2
PIP-CV
N.C.
+9VSW
N.C.
N.C.
N.C.
N.C.
N.C.
+12VSW
+5VSW
P/L
+9VSB
FB-OSDM
B-OSDM
G-OSDM
R-OSDM
FB-OSD
N.C.
N.C.
R-OSD
G-OSD
B-OSD
VDRIVE
+5VSB
SCL1
SDA1
+5VSB
IRBLST2
IRBLST1
0
0
0
0
0
0
0
0
0
0
G1-6
G1-5
G1-4
G1-3
G1-2
G1-1
0
0
W8000
0
0
G2-6
G2-5
G2-4
W8001
G2-3
G2-2
G2-1
0
0
0
0
0
0
0
0
0
0
0
0
G3-4
G3-3
G3-2
G3-1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
G4-6
G4-5
G4-4
G4-3
G4-2
G4-1
0
0
0
0
0
0
0
0
0
TP4100
0
G5-3
G5-2
G5-1
0
0
0
0
0
0
0
0
0
P/L
W8003
P/L
W8002
P/L
P/L
0
0
P1-1
33.3V
P1-2
8.8V
P1-3
5.6V
0
0
0
0
3.7V
P2-1
P2-2
0V
4.7V
P2-3
5.1V
P2-4
0V
P2-5
.1V
P2-6
P2-7
.1V
.1V
P2-8
P2-9
2.5V
0
0
P3-1
0V
P3-2
1V
P3-3
4.6V
P3-4
1.4V
P3-5
1.4V
P3-6
1.4V
P3-7
0V
P3-8
5V
0
0
0
0
0
0
5V
P4-1
P4-2
3.9V
P4-3
3.9V
0
0
0
0
0
0
0
0
P5-1
3.9V
P5-2
0V
P5-3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
P6-1
8.8V
P6-2
P6-3
P6-4
P6-5
P6-6
P6-7
11.8V
P6-8
5V
R5151
HFLBK-PM
+9V
SB
C5101
0.01
50V
C
Q5109
B
R5152
2.2K
E
121-1310 A
HFLBK_PM
10K
T2-CV-MICRO
G2 G1
HFLBK_PM
G3G5 G4
T1-CV-MICRO
GEM_VSYNC
PWR-FAIL
GEM-RESET
TP+5VBAK
M6 M 5 M4 M3 M2 M1
9-1932
+37VSBA
+9VSB
APWR-MUTE
AEXT-MUTE
T2-CV-MICRO
FB-OSDM
B-OSDM
G-OSDM
R-OSDM
PIP-TINT
HTONE
HFLBK_PM
VDRIVE
+5VSB
T1-CV-MICRO
Y-MICRO
GEM_VSYNC
ENABLE
RESET
PWR-FAIL
+5VSB
NC-DATA-OUT
IR-IN
GEM-RESET
CLOCK
CONV-ENABLE
RF-SW1
NC-DATA-IN
PWR-CNTL
NC-CLOCK
BBE-DEF
TE-CTRL
AFC1
AFC2
SCL2
SDA2
SCL1
SDA1
N.C.
KEY1
KEY2
MUTE
DATA
4.9V
M1-9
+37VSBA
33.3V
M1-8
8.8V
M1-7
5.6V
M1-6
0V
M1-5
0V
M1-4
5.1V
M1-3
0V
M1-2
.1V
M1-1
0
0
.1V
M2-4
M2-3
.1V
2.5V
M2-2
0V
M2-1
0
0
0
0
0
0
M3-8
1V
M3-7
4.7V
M3-6
5.0V
M3-5
5.1V
M3-4
2.1V
M3-3
5.0V
M3-2
5.0V
M3-1
3.8V
0
0
4.0V
M4-8
4.9V
M4-7
4.9V
M4-6
M4-5
M4-4
M4-3
5.0V
M4-2
5.0V
M4-1
0V
0
0
M5-9
5.0V
M5-8
5.0V
M5-7
5.0V
M5-6
5.0V
M5-5
3.9V
M5-4
5.0V
M5-3
4.0V
3.5V
M5-2
M5-1
0V
0
0
0
0
0
0
0
0
M6-5
0V
M6-4
4.1V
M6-3
0V
M6-2
0V
.2V
M6-1
0
0
0
0
ASSY
9-1913
9-1914
9-1942
9-1943
ASSY
9-1913
9-1914
9-1942
9-1943
+5V
SB
R4114
2.2K
R4113
2.2K
R4112
2.2K
REFER TO SHEET 7
FOR MODULE LIST
9-1927
9-1924
9-1924
9-1925
9-1689-02
9-1689-02
9-1689-02
+5V
SW
R4115
2.2K
+5V
SB
L6500
+5V
SW
VIDEO GEMSTAR MICRO
V5 V4 V3 V2 V1
P/L
HTONE
FSTBLK
HFLBK-PM
VDRIVE
B-OSD+PIP
G-OSD+PIP
R-OSD+PIP
GND-OSD+PIP
+5VSB
+12VSW
SCL2
SDA2
Y-SW
GND-Y-SW
C-SW
GND-C-SW
+9VSW
Y-EXT/CV
DVD-SELECT
+12VSW
+5VSW
CVIN
GND-CVIN
Y-COMB
GND-Y-COMB
C-COMB
GND-C-COMB
0
0
0
0
0
0
V1-1
0V
V1-2
0V
V1-3
1.3V
V1-4
4.6V
V1-5
1.4V
V1-6
1.4V
V1-7
1.4V
V1-8
0V
V1-9
5.0V
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
V2-1
1.8V
V2-2
4.0V
V2-3
4.0V
0
0
0
0
0
0
0
0
0
0
0
0
0
0
V3-1
3.4V
V3-2
0V
V3-3
3.4V
V3-4
0V
V3-5
8.8V
0
0
0
0
0
0
0
0
V4-1
0V
V4-2
0V
V4-3
CR
GND
CB
0V
V4-4
0V
V4-5
0V
V4-6
12V
V4-7
5V
V4-8
3.7V
V4-9
0V
V4-10
5.1V
V4-11
0V
V4-12
6.8V
V4-13 0
0V
G
F
E
D
C
B
A
DOLBY
D5 D4 D3 D2 D1
PROV
VAR-R-C-INT
VAR-L-C-IN T
SUR-VAR-R
GND-VAR- AUD
SUR-VAR-L
SUBWOOF
CNTR-VAR
APWR-MUTE
AEXT-MUTE
TEST-PL
GND- VAR-A UD- E XT
VAR-L-E XT
VAR-R-E XT
LT-S W- VL
RT-SW-VL
BBE-DEF
ENABLE
SCL2
SDA2
+15VSW
+15VSB
+9VSW
N.C.
N.C.
+12VSW
BBE
AC3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
D1-1
D1-2
D1-3
D1-4
D1-5
D1-6
D1-7
D1-8
D1-9
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
D2-1(N.C.)
D2-2
D2-3
D2-4
D2-5
D2-6
0
0
0
0
D3-1
D3-2
D3-3
D3-4
0
0
0
0
0
0
D4-1
D4-2
D4-3
0
0
D5-1
D5-2
D5-3
D5-4
D5-5
0
W850
91-2053
W851
91-2053
W852
91-2053
W853
91-2053
W854
91-2053
AUD-IF
A5 A4 A3 A2 A1
P/L
AFC1
+37VSBA
+9VSB
VAR*R-C*INT
VAR*L-C*INT
SUR*VAR*R
GND*VAR*AUD
SUR*VAR*L
+5VSB
T1-CVIN
T1-CV-MICRO
T1-GND
T1-MTS-RT
T1-MTS-LT
VAR-L-E XT
VAR-R-E XT
LT-S W- VL
RT-SW-VL
LT-S W
RT-SW
GND-AUD -SW
SCL2
SDA2
SCL1
SDA1
+15VSW
+15VSB
+9VSW
N.C.
N.C.
BBE-DEF
A1-1
4.8V
A1-2
33.3V
A1-3
8.8V
A1-4
4.1V
A1-5
4.1V
4.1V
A1-6
A1-7
0V
A1-8
4.1V
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
A2-1
5V
A2-2
3.9V
A2-3
5.1V
A2-4
0V
A2-5
4.1V
4.1V
A2-6
A2-7
A2-8
A2-9
A2-10
A2-11
A2-12
A2-13
0
0
0
0
0
0
A3-1
A3-2
A3-3
A3-4
0
0
0
0
0
0
0
0
A4-1
A4-2
A4-3
0
0
0
0
A5-1
A5-2
A5-3
0
0
0
0
6.2V
W856
4.1V
4.1V
3.7V
3.7V
0V
3.8V
3.9V
4.9V
4.9V
14.9V
15.2V
8.8V
0V
JUMP
W855
5.9V
JUMP
A
B
C
D
E
SHT.5
CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X“ IN THEIR
COMPONENT DESI G NATORS. REPLACE ONLY WITH PA RT NUMBERS SPECIFIED.
ALL S Y MBOLS WITH “M” ON END OF DESIGNA TOR
INDICA TE SURFACE MO UNT ED COMPONENT.
6 - 10
4073-B
204-3246-03
GM 9-1912/1913/1914 SHEET 4
GM SERIES MAIN SMALL SIGNAL CARRIER ( 9-1912/1913/1914)
TO
TO
PROC
T.E.
TO
50-1698-18
50-2735
50-1777-07
+12VDC
1211109
SHT.6
TO
SHT.8
C-1
87654321
SHT.4
JKP K AUDVID
+37V
L4100
SB
47MH
AUDVIDJKPK
A-1864 8A-1864 8
A-1865 0A-1865 0
6K2
2K6A
1
2
3
4
5
+5VSB
IR-HV
KEY1
KEY2
GND
5
4
3
2
1
6P2
P/L
1
+9VSW
2
GND
2P6A
2
1
P/L
3G2
PWR-CN TL
VDRIVE
+5V
IC4103
+12V
SW
C4114
P/L
25V
+12
VDC
C4101
.01
50V
CX4119
1000MF
+15V
SB
R4103
4.7
5W
CX4102
1000MF
25V
25V
IC4102
+9V
SW
C4105
47MF
35V
F-52831
126-3390-2
OUT IN
R4102
6.8
CX4104
470MF
25V
2W
+15V
IC4101
F-52831
126-3390-2
SW
Q4101
121-1102A
+9V
SB
OUTIN
+15V
SB
E
B
C
IC4104
+12
VDC
C4117
100MF
16V
F-52301
126-3326-02
OUT IN
C4116
0.47MF
50V
R4106
10K
C4103
4.7MF
50V
R4101
470
1W
R4104
1/2W
R4107
470
820
126-3390-02
Q4103
121-1310A
7
7
6
6
5
5
4
4
3
3
F-50060
2
2
1
1
C4107
PROV
25V
D4101
103-461A
Q4102
121-1340A
+5V
SB
R4108
4.7K
B
C
B
E
+5V
SB
C4108
47MF
35V
C4110
.47MF
50V
SW
D4103
103-461A
R4123
C4109
47MF
35V
47K
L4101
47UH
RESET
ABL
HFLBK2
HDRIVE
RDRIVE
BDRIVE
GDRIVE
+12V
SW
C
B
E
R4109
33K
C
Q4104
121-1310A
E
R4110
R4105
6.2K
AKB-SENSE
PWR-FAI L
100
C4111
1MF
50V
1
2
3
4
VIDEO
PROC
T.E.
CONNECTION
3N2
5
4
3
2
1
VIDEO
CONNECTION
5C2
1
2
3
4
5
6
7
8
9
VIDEO
PROC
T.E.
CONNECTION
2P6
P/L
TO
PWR-ON
LED
6A3
50-1725-03
TOAT
1
2
3
4
5
TO
TEST
EQUIPMENT
1
2
8
7
6
5
4
3
2
1
ASSY
9-1913
A-1865 0 A-18650
9-1914
9-1942
A-1864 9 A-1864 9
9-1943
HALF IN JKPK & HALF IN AUDVID
+9V
SW
REFER TO SHEET 7 FOR MO DULE LIST
JP1
JP4
JP2
JP3
JP12
P/L
L-SUR-OUT
L-SUR-RTN
R-SUR-OUT
R-SUR-RTN
SUB-WOOF
SUB-RTN
CNTR-VARA
CNTR-RTN
+5VSB
(GNDNC)
NC-CLOCK
NC-DATA-IN
NC-DATA-OUT
IRBLST2
IRBLST1
VAR -R- EXT
VAR -L-EXT
GND-VAR
AUD-EXT
MON-RT-OUT
MON- LT- O U T
GND-AUD
MON-VID-OUT
GND-VID
MON-Y-OUT
GND-YC
MON-C-OUT
Y-EXT/CB
GND
GND
AC3
JP1-1
JP1-2
JP1-3
JP1-4
0
0
0
0
0
0
0
0
0
0
JP4-1
JP4-2
JP4-3
JP4-4
N.C.
JP4-5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
JP2-1
JP2-2
JP2-3
JP2-4
JP2-5
JP2-6
0
0
0
0
JP3-1
JP3-2
JP3-3
JP3-4
0
0
0
0
JP12-1
JP12-2
JP12-3
JP12-4
JP12-5
JP12-6
JP12-7
JP12-8
JP12-9
JP12-10
CR
JP12-11
JP12-12
CB
JP12-13
0
0
0
0
0
0
(GNDNC)
Y-EXT/CV
TP4102
(VIDEO-TEST-PIN)
W810
JUMP
G
F
E
D
C
B
A
JP9
JP8 JP7 JP6
JP11
JP10
P/L
T2-CVIN
GND-T2
COMP-AUD2
T1-CVIN
T1-GND
T1-MTS-RT
T1-MTS-LT
LT-SW
RT-SW
GND-AUD- S W
Y-MICRO
GND-PIP-CV
PIP-CV
GND-Y-SW
C-SW
GND-C-SW
+9VSW
(GNDNC)
MON-RT-OUT
MON-LT-OUT
GND-AUD
MON-VID-OUT
GND-VID
MON-Y-OUT
GND-YC
MON-C-OUT
N.C.
DVD-SELECT
GND-CVIN
Y-COMB
GND-Y-C OMB
C-COMB
GND-C-C OMB
N.C.
SCL2
SDA2
Y-SW
CVIN
GND
JP6-8
JP6-7
JP6-6
JP6-5
JP6-4
JP6-3
JP6-2
JP6-1
0
0
0
0
0
0
JP7-6
JP7-5
JP7-4
JP7-3
JP7-2
JP7-1
0
0
0
0
0
0
0
0
0
0
0
0
JP8-8
JP8-7
JP8-6
JP8-5
JP8-4
JP8-3
JP8-2
JP8-1
0
0
0
0
0
0
JP11-3
JP11-2
JP11-1
0
0
0
0
JP9-8
JP9-7
JP9-6
JP9-5
JP9-4
JP9-3
JP9-2
JP9-1
0
0
0
0
JP10-6
JP10-5
JP10-4
JP10-3
JP10-2
JP10-1
SDA1
SCL1
TE-CTRL
+5VSB
+5V
SB
LSB
3A6
+9VSW
GND
GND
TO
GND
PWRFA
+37VSB
+12VDC
PWR-CNTL
+15VSB
15VDVCTL
GND
CRITICAL SAF ETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X“ IN THEIR
COMPONENT DESI GNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED.
ALL SYMBOLS W I TH “M” ON END OF DESIGNATOR
INDICA TE SURFACE MO UNTED COMPONENT.
204-3246-036 - 11
GM 9-1912/1913/1914 SHEET 5
GM SMALL SIGNAL CHASSIS AUDIO ( 9-1912/1913/1914)
87654321 1211109
SHT.5
SUBWOOF
G
CNTR-VAR
VAR-L- C-INT
Audio In Right
Audio In Left
SUBWOOF
SUR-VAR-L
SUR-VAR-R
CS/SS
4F8
8
7
6
GND
5
4
3
2
GND
1
A
PROV
TO
3X20
AMP
W823
PROV
W812
PROV
W825
PROV
W811
PROV
C819 C807
R819
3.3K
4.7MF
C820
4.7MF
50V
50V
R820
3.3K
R822
PROV
C822
PROV
C823
PROV
A
R823
PROV
R816 C808
22K
R815
22K
1000PF
50V
C810
1000PF
50V
C815
1MF
50V
1MF
50V
C806
220MF
16V
C809
220MF
16V
R805
220
R810
220
F
VAR-R-C-INT
VAR -L -C-IN T
E
VAR-R-C-I N T
C802
100MF
16V
A
FILTER
4
400
5
3
PRE_GND
1
400
2
IC800
GND
D
APWR-MUT E
A
R845
22K
C
B
Q845
121-1310A
E
A
ALL PARTS IN LOWER DASHED LINES PROVISONAL ON 9-1914
C
SUR-VAR-L
B
SUR-VAR-R
AEXT-MUT E
TO
3X20
AMP
2J3
PROV
+12V
SW
1
2
3
C877
PROV
25V
C880 C870
4.7MF
50V
R891
22K
A
R877
PROV
R873
PROV
R874
B
22K
R880
3.3K
C
Q890
B
121-1310A
E
B
C871
PROV
50V
C878
1000PF
50V
W808
JUMP
C872
1MF
50V
1MF
50V
C869
220MF
16V
C867
220MF
16V
R890
2.2K
P/L
B
R865
220
R866
220
IC850
F-51713
C881
100MF
16V
R821
2.2K
4
5
3
1
2
400
PRE_GND
400
100MF
C821
100MF
16V
C853
16V
FILTER
+15V
SW
RX801
39
FS
D801
103-347A
6
9
VCCRIPPLE
+
AMP1
-
20K
PW_GND
20K
-
AMP2
+
TA8200AH
MUTEMUTE T.C.
811
A
9
6
VCCRIPPLE
+
AMP1
-
20K
PW_GND
20K
-
AMP2
+
TA8200AH
MUTEMUTE T.C.
811
B
+26V
AUD
RX848
CX813
1500MF
25V
CX814
25V
CX862
1500MF
NOTE:
25V
CX859
1500MF
25V
.22
1W
R813
2.2K
C*
R814
2.2K
C*
RX849
.22
1W
CX856
1000MF
35V
D
R859
2.2K
D*
R862
2.2K
D*
D
D
W804
JUMP
W805
JUMP
W802
JUMP
C
W803
JUMP
C
C803
0.1
50V
C*
C
CX848
1000MF
35V
7
R811
2.2
10
C811
0.1
50V
C*
C*
12
1500MF
R812
2.2
C812
0.1
50V
C*
+15V
SW
RX800
39
FS
D850
103-347A
C857
0.1
50V
7
10
12
D*
R860
2.2
C860
0.1
50V
D*
D*
R861
2.2
C861
0.1
50V
D*
JUMPERS IN THIS SECTION
W78
W824
W826
A
9K3.ALT
1
2
C
P/L
3X20
AMP
LT-RTN
LT-OUT
W809
PROV
R881
PROV
R882
PROV
TO
RT-RTN
RT-OUT
58-526-02C
8V4
CNTR-VARA
9K3
1
2
TO
LSB
1
2
3
4
5
6
7
8
PROV
FROM
3X20
AMP
L-SUR-OUT
L-SUR-RTN
R-SUR-OUT
R-SUR-RTN
SUB-RTN
SUB-WOOF
9M4
1
2
3
4
TO
SPKRS
CRITICAL SAFE TY COM P ONENT S ARE IDENTIFIED B Y THE LETTER “X “ IN THEIR
COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED.
ALL S Y MBOLS WITH “M” ON END OF DES IGNATOR
INDICA TE SURFACE MO UNTE D COMPONENT.
6 - 12
4073-C
204-3246-03
GM 9-1912/1913/1914 SHEET 6
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