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FILE NO.
SERVICE MANUAL Colour Television Model No. CP21CE1
(Australia)
Service Ref. No. CP21CE1-00
TV/AV
TIMER
x
1 2 3
4 5 6
7 8 9
-/-- P P
0
SWAP CH CH SCAN
MENU
A. B CH PICTURE
SOUND S. SYS
BASS SURROUND
VIDEO AUDIO TV/AV MENU - + CH POWER
JXPSC
Specifications Product Code:113002116
Power Source . . . . . . . .AC220-240V, 50/60Hz.
Colour System . . . . . . . .PAL, NTSC4.43, NTSC, PAL 60Hz
Television System . . . . .B/G, D/KK', I, M/M
Channel Coverage . . . . .VHF: E2-E12, R1-R12, K1-K9, J1-J12, A2-A13
0-11, 5A (Aus.), 1-11 (NZ)
UHF: 21-69, A14-A69, J13-J62, 28-69 (Aus.)
CATV: S1-S41, X, Y, Z, Z+1, Z+2 Original Version
Video IF . . . . . . . . . . . . . .38.0 MHz
Aerial Input Impedance . 75 Chassis Series: AC6-A
Ext. Terminals
Video inputs: Phono jack 2 (1.0Vp-p, impedance 75)
Audio inputs: Phono jack 2 (436mVrms, impedance more than 40K) Give complete "SERVICE REF. NO." for parts
Video monitor output: Phono jack 1 (1.0Vp-p, 75) order or servicing. It is shown on the rating plate
Audio monitor outputs: Phono jack 1(436mVrms, Impedance less than at the cabinet back of the unit.
600)
Speaker . . . . . . . . . . . . . . 5 cm 9 cm 2 pcs.
Sound Output . . . . . . . . . 2.5W + 2.5W (RMS) This T.V. receiver will not work properly in
Dimensions . . . . . . . . . . . 580 (W) 460 (H) 465 (D)mm foreign countries where the television
Weight . . . . . . . . . . . . . . . approx. 19.5 Kg transmission system and power source dif-
fer from the design specifications. Refer to
Specifications subject to change without notice
the specification table.
C8VV REFERENCE NO. SM3010159
Contents
Safety Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Chassis Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
IC Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
CPU Port Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Service Adjustment with Replacing Memory IC(IC801) . . . . . . . . . . . . 8-11
Service Mode Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-13
Service Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Special Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Purity and Convergence Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Mechanical Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Protection Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Cabinet Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Chassis Electrical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-25
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-27
Voltages and Waveforms Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27-28
Safety Notice
SAFETY PRECAUTIONS
1: An isolation transformer should be connected in the 3: When replacing a chassis in the cabinet, always be
power line between the receiver and the AC line certain that all the protective devices are installed
when a service is performed on the primary of the properly, such as, control knobs, adjustment covers
converter transformer of the set. or shields, barriers, isolation resistor-capacitor net-
works etc.. Before returning any television to the
2: Comply with all caution and safety-related notes pro- customer, the service technician must be sure that
vided on the cabinet back, inside the cabinet, on the it is completely safe to operate without danger of
chassis or the picture tube. electrical shock.
X-RADIATION PRECAUTION
The primary source of X-RADIATION in television receiver is the picture tube. The picture tube is specially con-
structed to limit X-RADIATION emissions. For continued X-RADIATION protection, the replacement tube must be
the same type as the original including suffix letter. Excessive high voltage may produce potentially hazardous X
- RADIATION. To avoid such hazards, the high voltage must be maintained within specified limit. Refer to this
service manual, high voltage adjustment for specific high voltage limit. If high voltage exceeds specified limits,
take necessary corrective action. Carefully follow the instructions for + B1 volt power supply adjustment, and high
voltage check to maintain the high voltage within the specified limits.
PRODUCT SAFETY NOTICE
Product safety should be considered when a component replacement is made in any area of a receiver.
Components indicated by mark in the parts list and the schematic diagram designate components in which
safety can be of special significance. It is particularly recommended that only parts designated on the parts list
in this manual be used for component replacement designated by mark . No deviations from resistance
wattage or voltage ratings may be made for replacement items designated by mark .
-2-
X161
SAW
A101 FILTER
IF-IN
63 Q901
IF OUT
TUNER 10 IF-IN CRT
64
SP901 IC001 IC201 L902
AUDIO AMP. DY
CPU/CHROMA/
L-OUT IF/VIDEO/DEF.
8
R-OUT 4 IC501
SP902 12 1 5
R-OUT VERTICAL
FM-OUT 12
FOCUS
5
G-OUT
13
AV-FRONT
SCREEN
14 B-OUT
Chassis Block Diagrams
EXT. AUDIO-IN 9
AUDIO (L)-IN +
V-OUT
17
VIDEO-IN
V-IN 54 T471
H-OUT
T431
21 H-DRIVE FBT
TRANS HV
AV-REAR Q431 Q432
-3-
VIDEO-IN ABL FEED BACK
V-IN 46 10
VIDEO-OUT ON-TIMER
AUDIO (L)-IN 52 29
KEY-IN
AUDIO-OUT 39
6 RC-IN
V-OUT
26
AUDIO (L)-OUT 31/32
T611
CONVERTER
SDA/SCL
TRANS
AUDIO CONTROL CPU, VERTICAL
5/6
13 9V IC202 5V-1
IC801
MEMORY CPU, TUNER, MEMORY
IC651 5VRC
RC
RECEIVER AC PRIMARY 12 VERTICAL
CIRCUIT
24V
14 14V AUDIO AMP.
FRONT 11 130V FBT, TUNER
KEYS
D610
(Power ON=High)
LED STB
SOUND MUTE
IC001 (MUTE=H)
AUDIO AMP. 30
System Control
RESET INPUT (RESET=LOW)
40 KEY SWITCH IN KEY
39 SWITCH
EXT. AUDIO INPUT
9
IC201
QXXAVC647---N
QXXAVC647---N
IIC SCL
32 4 A101
IIC SDA
Chassis Block Diagrams
31 5 F/S TUNER
POWER ON/OFF
(ON=HIGH, OFF=LOW)
36 PHOTO COUPLE
-4-
RC SIGNAL IN
(ACTIVE=HIGH)
RC PRE-AMP. 26
OSD RED OUT(Active=High)
ON-TIMER LED OUT (ON TIMER ON=Low) 12
LED 29 OSD GREEN OUT(Active=High)
13
OSD BLUE OUT(Active=High)
CPU OSC IN 14 CRT UNIT
OSC 33
X801
32.768KHz CPU OSC OUT
34
23
32 31
IIC SCL
IIC SDA
POWER PROTECT IN POWER CIRCUIT
6 5
(POWER ERROR=LOW) etc.
IC801
MEMORY
OUT VCC:5V
IF IN RF-AGC VIDEO INT-V VCD EXT-V SVO/FSC CR CB DVD-Y YC-Y YC-C FBP VDD
VCC
CPU GND
0.47U
+
0.47U
47K
20K
100
18P
15P
AN6/P06
AN7/P07
AN4/P04
AN5/P05
680K
2.2U
+
2.2U 100
+
SAW
4.43M
0.033U
0.047U
150K
0.1U
0.1U
0.33U
0.01U
0.01U
0.1U
FIL
0.01U
12K
750
0.1U
+
+
+
+
100U
+
100U
560
100U
1U
1U
1U
1U
47K
1U
510K
+
+
+
+
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
CLMP CLMP CLMP PLL RST
CLOCK
VXO DDS APC2 CONTROL
RF VIDEO DC ADJ VDD
AFT
AGC AMP
V DET AFT
VIDEO FSC RESET
I/O
SW APC1 VCO
SYNC RESET PORT 0
SW DAH CPU TST R
IC201 < CPU/IF/Video/Chroma/Def.> LA76931AD56S1-E
BPF YC SW PAL SW D1 SW HOR
ACC CPU TST G
DEMO 1H DL VCO
IF CPU TST B
TRAP VCO
AGC
TINT 1/256 CVBS
DC
REST PDC
BASE
-5-
BUS CPU ROM RAM
VIF VIDEO HOR ENABLE CORE TIMER
AMP V/Y DL BG RGB COLOR
DET TRAP C/D
SW SHARP SG MATRIX CLAMP VS
HS
VS HS
CLOCK TIMER
SOUND R OSD BUS CONTROL ADC
0
DET OSD
G
SPLL SYNC AFC1 FBP B
SEP
LIM FS
OSD OSD CONTRAST
BPF AMP CONTRAST SW BRIGHT I
VER AFC2
SEP DATA
500K FM ABL VER CLOCK I/O
SW DRIVE/OUT-OFF PHASE
DET DET ACL C/D SHIFTER PORT 1
C-SYNC
IC Block Diagrams
VER
RAMP
BPF FM DC HOR HOR
AMP VOL VCC OUT
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
0.01U
1CHIP GND
10K 0.01U
+
V RAMP
0.015U
1U
0.022U
4.7K
3K
+
+
100U
10U
0.022U
0.01U
0.01U
1500P
+
100U
+
100U
+
39K
1U